When analyzing patients according to DM treatment, insulin-treated patients were younger (73.6 ± 12.3 vs. 79.8 ± 11.2, p < 0.001), but had a similar length of hospital stay (15.3 ± 13.2 vs. 12.5 ± 12.9 days, p = 0.122), a similar duration to the day of inclusion (4.6 ± 5.2 vs. 4.2 ± 5.4 days, p = 0.550) and a similar percentage of ONS completion (69.7 ± 38.2 vs. 69.4 ± 36.5%, p = 0.951). Here, INS is linked to diabetes mellitus.